If FED has no rate cut - The stock market will crash. Gold is considered safe haven. Price goes up. This is unlikely to happen.
If FED has a 0.25% of rate cut, which is likely odd. -- This is not enough to support the market rally. Market heads lower and gold continues its consolidation. But as more rate cuts are expected. Gold will go up afterwards.
If FED has a 0.5%% or higher of rate cut (this odd is low). -- This is unexpected by the market. Market will have a big run up. This is also good for gold since now the market put more attention to inflation instead of credit crunch.